Monte Carlo simulation of discrete -ray detectors

Bakkali, Aboubakr; Tamda, N.; Parmentier, Michel; Chavanelle, J.; Pousse, A.; Kastler, B.

doi:10.1016/j.nima.2005.01.344

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…The existence of spatial distortions is a very common problem in planar images from small field of view γ-Camera systems based on Position Sensitive Photomultiplier Tubes PSPMT [1]- [4]. These distortions result in the deterioration of the quality and the clinical value of the image.…”

Section: Introductionmentioning

confidence: 99%

A correction method of the spatial distortion in planar images from γ-Camera systems

et al. 2009

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A methodology for correcting spatial distortions in planar images for small Field Of View (FOV) γ-Camera systems based on Position Sensitive Photomultiplier Tubes (PSPMT) and pixelated scintillation crystals is described. The process utilizes a correction matrix whose elements are derived from a prototyped planar image obtained through irradiation of the scintillation crystal by a 60 Co point source and without a collimator. The method was applied to several planar images of a SPECT experiment with a simple phantom construction at different detection angles. The tomographic images are obtained using the Maximum-Likelihood Expectation-Maximization (MLEM) reconstruction technique. Corrected and uncorrected images are compared and the applied correction methodology is discussed.

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Section: Introductionmentioning

confidence: 99%

A correction method of the spatial distortion in planar images from γ-Camera systems

et al. 2009

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“…In the last few years, many studies have been carried out on compact position sensitive gamma-ray detectors in order to optimize a gamma camera for nuclear medicine imaging [1][2][3][4][5][6] . Much of the work dealing with the subject, was mainly oriented towards reaching the best intrinsic detector spatial and energy resolution by using the last generation position sensitive photo multiplier tube [7] (PSPMT), on innovative collimator technique [8] , a novel multi-anode readout and an optimized data acquisition system.…”

Section: Introductionmentioning

confidence: 99%

Study of the characteristics of a scintillation array and single pixels for nuclear medicine imaging applications

Zeng

et al. 2009

Chinese Phys. C

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Monte Carlo study of spatial resolution of the scintillation camera

Ouyang

Chen

2011

Sci. China Technol. Sci.

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The aim of this study was to evaluate the influence of different entrance surface treatments of the scintillator on the intrinsic spatial resolution of a scintillation camera. The primary scintillation light reflection on the entrance surface of a scintillator may be affected by the optical coating of the entrance surface, resulting in either spatial resolution or system detection efficiency degradation. A Monte Carlo simulation model, based on Geant4 codes, was developed in order to study the scintillation light transportation in the scintillator with an entrance surface of various optical coatings. The results demonstrated that the application of retro-reflector on entrance surface of the scintillation crystal can significantly improve the intrinsic spatial resolution of the scintillation camera. The physical mechanism of the improvement of spatial resolution is explored.surface treatments, gamma camera, spatial resolution, Monte Carlo study Citation:Zhu J, Ouyang X P, Chen D. Monte Carlo study of spatial resolution of the scintillation camera.

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Monte Carlo simulation of discrete -ray detectors

Cited by 4 publications

References 5 publications

A correction method of the spatial distortion in planar images from γ-Camera systems

A correction method of the spatial distortion in planar images from γ-Camera systems

Study of the characteristics of a scintillation array and single pixels for nuclear medicine imaging applications

Monte Carlo study of spatial resolution of the scintillation camera

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